Viewport navigability suggestion

 From:  wastzzz
6145.1 
Some 3D software have an option for navigability which in my opinion is very good for understanding the project, and working on details.
Basically it's a button that allows the camera to move with the arrow keys, or WASD keys, like in a videogame.
Would it take a lot to implement this? It would make MoI a perfect software for modeling architectural projects.
Thank you.
M.